What is the overall function of the light-dependent reactions?
ATo convert carbon dioxide into a sugar chain
BTo convert stored starch back into glucose
CTo convert water directly into carbohydrate
DTo convert solar energy into NADPH and ATP
Answer & Solution
Correct answer: D. To convert solar energy into NADPH and ATP
1. The overall function of the light-dependent reactions is to convert solar energy into chemical energy.
2. That chemical energy takes the form of NADPH and adenosine triphosphate.
3. Protein complexes and pigment molecules work together to produce them.
4. Building sugar from carbon dioxide is the job of the second stage, which spends what this stage makes.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 8 "Photosynthesis", section 8.2 The Light-Dependent Reactions of Photosynthesis_
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